🌱 Remove previously deprecated --metrics-bind-addr flag

[Sunnatillo]

Removes MetricsBindAddr flag

What this PR does / why we need it:
follows : https://github.com/kubernetes-sigs/cluster-api/tree/main/docs/release/role-handbooks/release-lead#track-remove-previously-deprecated-code

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Part of #11092

/area util

[sbueringer]

Thx, one nit

[sbueringer]

Last nit from my side

/assign @fabriziopandini @chrischdi

[k8s-ci-robot]

@Sunnatillo: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cluster-api-apidiff-main	6e02691	link	false	/test pull-cluster-api-apidiff-main

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[sbueringer]

Thx!

/test pull-cluster-api-e2e-blocking-main

/lgtm

I'll give folks a bit of time to review. If nobody gets around to it, feel free to ping me next week and I'll approve.

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: c7e603a5514e9da426a821cff296ec83c8fa58cb

[fabriziopandini]

Thanks for this PR!
/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini

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